Paper1 Flashcards
Where do polymers come from?
Polymers are melted from petroleum oil and made by scientists and engyniers
What are the two main polymer families?
Thermo setting (cant form into shape)
Thermo forming (can form into shape)
What is a pigment?
Colour
What are polymer additives
Chemicals added to the base of the polymer
Why are polymer additives used?
Improve the process of making and make things live longer
what is (HIPS)
High impact polystryene
What is PVC
Polyvinyl chloride
What is PET
Polythlyne terephlate
What is PF
Phenol formaladhyde
What is PP
Polyproplene
What is MF
Melamine Formaldehyde
What is UH
Urea Formaldehyde
What is PMMA
Acrylic
What is coppers composition
Silicon
What is cast irons composition
Iron
What is stainless steel composition
Chorimah
What is Brass composition
Copper zinc
What is Aluminium composition
Pure metal
What is Low Carbon Steel composition
Mild steel
What is High Carbon Steel composition
Carbon steel metal
What is zinc composition
Sphalerite
What are the 6 Rs
Reduce
Rethink
Refuse
Recycle
Reuse
Repair
What is Reduce
Is it possible to reduce the amount of materials used
What is Rethink
Is there a better way to solve this that is less damaging to the enviourment
What is refuse
This means not accepting things that are not the best for the enviourment
Egsample for refuse
Is the packaging realy needed
What is Recycle
Could recycled materials be or is it the product made from the materials thhat are easy to recycle
What is Reuse
Could this product have another use. Could its larts be used in other products. This will extend its life
What is Repair
Is the product easy to repair. This will extend its life
What are primary sources
First had authorstive accounts for events topic histlrical periods
Original imformation is
A primary recource
E.g primary recource
Letters or diarys,original photographs,speeches,newspaper,creative works,reserch data or survey
What are secondary recources
Interpret,critique,analyse primary recources
E.g of secondary recources
Textbooks,essays or reviews,articals that analyse or discuss events,critisism
What does enterprise mean
Starting a new buissness or expanding one
What is finite
Will not run out
Polluting
Toxic run off and impacts on local people
Sin calc?
Opp/hyp
Cos calc?
Addj/hyp
Tan calc?
Opp/addj